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613 exercises solved in chemistry, physics and mathematics. verification of statements about points and lines in the Cartesian plane. consider the points and and the line. of the following statements:. b) is symmetrical in relation to the line. c) is the basis of an equilateral, vertex or triangle. a fa*mer needs to know that the depth of a well on your property, so that it leaves a stone in the mouth of the well and expect to hear the sound of the stone hitting the water. with a timer, he remarks that from the moment he released the stone until the moment he heard the sound of it hitting the water, they pas*ed. What is the height of the well from the surface of the water? Notes: Neglect the effect of air resistance, and consider the acceleration of gravity and the speed of sound in the air. . verification of statements about points and lines in the Cartesian plane. consider the points and and the line. of the following statements:. b) is symmetrical in relation to the line. c) is the basis of an equilateral, vertex or triangle. calculate the number of terms of e.g. of reason, term 6144 and last term 3. A gas occupies 4 liters in a given container and its pressure is unknown. what would be the pressure in the 1st container if we put that same gas in another space with capacity for 2 liters and pressure of 1520 mm hg? if an ideal gas occupies 4 liters at a temperature of 300 k. if we change its temperature to 900 k, what would be its new volume ?. volume of water needed to obtain 10 mols of H2. sodium hydride reacts with water, giving hydrogen, according to the reaction: to get 10 mols of h2, how many moles of water are needed? a fa*mer needs to know that the depth of a well on your property, so that it leaves a stone in the mouth of the well and expect to hear the sound of the stone hitting the water. with a stopwatch, he notes that, from the moment he dropped the stone until the moment he heard the sound of it hitting the water, pas*ed. What is the height of the well from the surface of the water?